Tip Calculator

Pick a percent, split with your group, add sales tax, and choose rounding. Works great on mobile at the table.

Bill

If your bill only shows the grand total, enable the toggle below and enter the total with your tax rate.
Enter your local rate. Optional.
When checked, subtotal is backed out from grand total using your tax rate.

Tip %

All calculations run in your browser.

Summary

Bill summary with tax, tip, and total
Total$0.00

Per person

Per-person tip and total

About this Tip Calculator

This fast, mobile-friendly tip calculator helps you land on a fair tip without doing mental math at the table. Enter the pre-tax subtotal, add your local sales tax if you know it, choose a tip percentage or type a custom value, and decide whether to tip on the pre-tax or post-tax amount. You can split the bill across any number of people and optionally round the tip, the grand total, or the per-person total to whole dollars for cleaner payments. Everything runs locally in your browser so it is quick and private. If your receipt shows only the grand total, switch to grand-total mode and the tool will back out the pre-tax amount using your sales tax rate.

How to use

  1. Choose your input mode. If you have a pre-tax subtotal, enter it directly. If you only have a grand total, tick “I only know the grand total,” enter the total and your tax rate, and we will compute the pre-tax base for you.
  2. Add sales tax. Many U.S. cities list tax separately. If you do not know your rate, you can leave this blank or try our Sales Tax Calculator.
  3. Pick a tip percent. Tap a preset like 18% or 20%, or type a custom percentage for exact situations such as 17.5%.
  4. Choose the tip base. Tipping on pre-tax is common. Some people prefer tipping on the post-tax total. Pick what matches your norm or local etiquette.
  5. Split and round. Set the number of people. If you want neat amounts, use rounding. You can round just the tip, the entire total, or each per-person total.
  6. Export or share. Download a quick CSV of your calculation for expense tracking or reimbursement. You can also bookmark the page with your preferred settings.

Understanding the results

The Summary table shows the computed sales tax from your rate, the tip amount at the chosen percentage, and the grand total. The Per-person table displays how much each person owes, including both tip and tax, along with the per-person share of the tip. If you enable rounding, the calculator adjusts the selected target and recomputes the others so everything still adds up. For example, if you round the total up by 42 cents, the tool increases the tip by 42 cents. If you round per-person to whole dollars, it scales the grand total to match exactly. When you use grand-total mode, the tool derives a pre-tax base from your total and rate so your percent math remains accurate.

For quick context, 18% to 20% is a common range for good service in many U.S. cities. Larger groups, special requests, or extended table time can justify a higher percent. If service was truly poor, many diners still leave a smaller tip rather than zero. This tool does the arithmetic either way so you can focus on the conversation rather than the calculator.

FAQ

Should I tip on pre-tax or post-tax? That is preference and local custom. Pre-tax is common, but some people tip on the total. The calculator supports both so you can choose.

What percent should I use? In many U.S. cities, 18% to 20% is typical for good service. Use presets for speed or set any custom percentage for special cases.

How does rounding work? Rounding tweaks the selected value to a whole dollar and adjusts the other numbers so your math still balances.

Why is my subtotal different when I only know the grand total? In grand-total mode, the tool backs out the pre-tax amount from the total using your tax rate so your tip base is accurate.

Can I track this later? Yes. Use the CSV button and save the record with receipts. You can also run similar math with our Percentage Calculator or convert currencies with the Currency Converter while traveling.